Changed the data type for the Feature Class parameter to Feature Classs for all three scripts

Changed the data type for the Feature Class parameter for all three scripts from Feature Layer to Feature Class to accomodate Network Dataset members (and possibly others).

The Feature Class parameter data type was originally set to 'Feature Layer'.  Although it's not clear from the documentation (see link below), the Feature Layer data type excludes complex Geodatabase feature classes, such as the Simple Junction Feautures that are part of a Network Dataset, even though ArcPy treats them as simple Point features for the operations performed by these tools.

To allow the export of Network Dataset participants I changed the Feature Class parameter data type to 'Feature Class'.

Geoprocessing Data Types document: http://resources.arcgis.com/en/help/main/10.1/01m1/pdf/Geoprocessing_data_types.pdf